15.09.2021 07:38, Nicolin Chen пишет:
> On Tue, Sep 14, 2021 at 10:20:30PM +0300, Dmitry Osipenko wrote:
>> 14.09.2021 21:49, Nicolin Chen пишет:
>>> On Tue, Sep 14, 2021 at 04:29:15PM +0300, Dmitry Osipenko wrote:
14.09.2021 04:38, Nicolin Chen пишет:
> +static unsigned long
Hi Jan,
Thanks for the answer.
>> From: Roman Skakun
>>
>> It is possible when default IO TLB size is not
>> enough to fit a long buffers as described here [1].
>>
>> This patch makes a way to set this parameter
>> using cmdline instead of recompiling a kernel.
>>
>> [1]
On Tue, Sep 07, 2021 at 07:44:44PM +0200, Thierry Reding wrote:
> On Tue, Sep 07, 2021 at 10:33:24AM -0500, Rob Herring wrote:
> > On Fri, Sep 3, 2021 at 10:36 AM Thierry Reding
> > wrote:
> > >
> > > On Fri, Sep 03, 2021 at 09:36:33AM -0500, Rob Herring wrote:
> > > > On Fri, Sep 3, 2021 at
On Wed, Sep 15, 2021 at 03:49:52PM +0200, Jan Beulich wrote:
> But the question remains: Why does the framebuffer need to be mapped
> in a single giant chunk?
More importantly: if you use dynamic dma mappings for your framebuffer
you're doing something wrong.
Dear Linux folks,
Am 15.09.21 um 00:17 schrieb Paul Menzel:
[Use Mario’s current address]
Am 15.09.21 um 00:15 schrieb Paul Menzel:
[Cc: +Mario from AMD]
Am 14.09.21 um 14:09 schrieb Jörg Rödel:
On Tue, Sep 14, 2021 at 11:10:57AM +0200, Paul Menzel wrote:
Linux 5.15-rc1 still warns
__domain_mapping() always removes the pages in the range from
'iov_pfn' to 'end_pfn', but the 'end_pfn' is always the last pfn
of the range that the caller wants to map.
This would introduce too many duplicated removing and leads the
map operation take too long, for example:
Map
Hi guys,
We found that the __domain_mapping() would take too long when
the memory region is too large, we try to make it faster in this
patchset. The performance number can be found in PATCH 2, please
review when you free, thanks.
Longpeng(Mike) (2):
iommu/vt-d: convert the return type of
first_pte_in_page() returns boolean value, so let's convert its
return type to bool.
Signed-off-by: Longpeng(Mike)
---
include/linux/intel-iommu.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 05a65eb..a590b00
15.09.2021 15:09, Dmitry Osipenko пишет:
> 15.09.2021 07:38, Nicolin Chen пишет:
>> On Tue, Sep 14, 2021 at 10:20:30PM +0300, Dmitry Osipenko wrote:
>>> 14.09.2021 21:49, Nicolin Chen пишет:
On Tue, Sep 14, 2021 at 04:29:15PM +0300, Dmitry Osipenko wrote:
> 14.09.2021 04:38, Nicolin Chen
On 15.09.2021 15:37, Roman Skakun wrote:
>>> From: Roman Skakun
>>>
>>> It is possible when default IO TLB size is not
>>> enough to fit a long buffers as described here [1].
>>>
>>> This patch makes a way to set this parameter
>>> using cmdline instead of recompiling a kernel.
>>>
>>> [1]
From: Tianyu Lan Sent: Tuesday, September 14, 2021 6:39 AM
>
> In Isolation VM, all shared memory with host needs to mark visible
> to host via hvcall. vmbus_establish_gpadl() has already done it for
> storvsc rx/tx ring buffer. The page buffer used by vmbus_sendpacket_
> mpb_desc() still needs
From: Tianyu Lan Sent: Tuesday, September 14, 2021 6:39 AM
>
> In Isolation VM with AMD SEV, bounce buffer needs to be accessed via
> extra address space which is above shared_gpa_boundary
> (E.G 39 bit address line) reported by Hyper-V CPUID ISOLATION_CONFIG.
> The access physical address will
From: Tianyu Lan Sent: Tuesday, September 14, 2021 6:39 AM
>
> hyperv Isolation VM requires bounce buffer support to copy
> data from/to encrypted memory and so enable swiotlb force
> mode to use swiotlb bounce buffer for DMA transaction.
>
> In Isolation VM with AMD SEV, the bounce buffer
From: Tianyu Lan Sent: Tuesday, September 14, 2021 6:39 AM
>
> Mark vmbus ring buffer visible with set_memory_decrypted() when
> establish gpadl handle.
>
> Signed-off-by: Tianyu Lan
> ---
> Change sincv v4
> * Change gpadl handle in netvsc and uio driver from u32 to
> struct
> -Original Message-
> From: Michael Kelley
> Sent: Wednesday, September 15, 2021 12:22 PM
> To: Tianyu Lan ; KY Srinivasan ;
> > + memset(vmap_pages, 0,
> > + sizeof(*vmap_pages) * vmap_page_index);
> > +
On Wed, Sep 08, 2021 at 05:58:31PM -0500, Tom Lendacky wrote:
> This patch series provides a generic helper function, cc_platform_has(),
> to replace the sme_active(), sev_active(), sev_es_active() and
> mem_encrypt_active() functions.
>
> It is expected that as new confidential computing
Le 15/09/2021 à 12:08, Borislav Petkov a écrit :
On Wed, Sep 15, 2021 at 10:28:59AM +1000, Michael Ellerman wrote:
I don't love it, a new C file and an out-of-line call to then call back
to a static inline that for most configuration will return false ... but
whatever :)
Yeah, hch thinks
From: Tianyu Lan Sent: Tuesday, September 14, 2021 6:39 AM
>
> Hyperv provides GHCB protocol to write Synthetic Interrupt
> Controller MSR registers in Isolation VM with AMD SEV SNP
> and these registers are emulated by hypervisor directly.
> Hyperv requires to write SINTx MSR registers twice.
From: Tianyu Lan Sent: Tuesday, September 14, 2021 6:39 AM
>
> The monitor pages in the CHANNELMSG_INITIATE_CONTACT msg are shared
> with host in Isolation VM and so it's necessary to use hvcall to set
> them visible to host. In Isolation VM with AMD SEV SNP, the access
> address should be in
On 9/15/21 9:46 AM, Borislav Petkov wrote:
Sathya,
if you want to prepare the Intel variant intel_cc_platform_has() ontop
of those and send it to me, that would be good because then I can
integrate it all in one branch which can be used to base future work
ontop.
I have a Intel variant
On Wed, Sep 15, 2021 at 03:09:48PM +0300, Dmitry Osipenko wrote:
> 15.09.2021 07:38, Nicolin Chen пишет:
> > On Tue, Sep 14, 2021 at 10:20:30PM +0300, Dmitry Osipenko wrote:
> >> 14.09.2021 21:49, Nicolin Chen пишет:
> >>> On Tue, Sep 14, 2021 at 04:29:15PM +0300, Dmitry Osipenko wrote:
>
From: Tianyu Lan Sent: Tuesday, September 14, 2021 6:39
AM
>
> In Isolation VM, all shared memory with host needs to mark visible
> to host via hvcall. vmbus_establish_gpadl() has already done it for
> netvsc rx/tx ring buffer. The page buffer used by vmbus_sendpacket_
> pagebuffer() stills
On Wed, Sep 15, 2021 at 07:18:34PM +0200, Christophe Leroy wrote:
> Could you please provide more explicit explanation why inlining such an
> helper is considered as bad practice and messy ?
Tom already told you to look at the previous threads. Let's read them
together. This one, for example:
Mainly DELL should look at this, because it is their BIOS which is responsible
for this inconsistency.
> Am 15.09.2021 um 00:17 schrieb Paul Menzel :
>
> [Use Mario’s current address]
>
> Am 15.09.21 um 00:15 schrieb Paul Menzel:
>> [Cc: +Mario from AMD]
>> Dear Jörg,
>> Am 14.09.21 um 14:09
Dear Jörg,
Am 15.09.21 um 10:30 schrieb Jörg Rödel:
Mainly DELL should look at this, because it is their BIOS which is
responsible for this inconsistency.
I am not so sure about that, as today’s (x86) firmware often consists of
platform initialization (PI) code (or firmware support package
Possible, but still DELL is the first point of contact here. If they find out
that the problem is actually in Agesa, then DELL can escalate this to AMD.
> Am 15.09.2021 um 10:42 schrieb Paul Menzel :
>
> Dear Jörg,
>
>
> Am 15.09.21 um 10:30 schrieb Jörg Rödel:
>> Mainly DELL should look at
On Wed, Sep 15, 2021 at 10:28:59AM +1000, Michael Ellerman wrote:
> I don't love it, a new C file and an out-of-line call to then call back
> to a static inline that for most configuration will return false ... but
> whatever :)
Yeah, hch thinks it'll cause a big mess otherwise:
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